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Previous: <a href="Z80_002dRegs.html#Z80_002dRegs" accesskey="p" rel="prev">Z80-Regs</a>, Up: <a href="Z80-Syntax.html#Z80-Syntax" accesskey="u" rel="up">Z80 Syntax</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="AS-Index.html#AS-Index" title="Index" rel="index">Index</a>]</p>
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<a name="Case-Sensitivity"></a>
<h4 class="subsubsection">9.53.2.3 Case Sensitivity</h4>
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<p>Upper and lower case are equivalent in register names, opcodes,
condition codes  and assembler directives.
The case of letters is significant in labels and symbol names. The case
is also important to distinguish the suffix &lsquo;<samp>b</samp>&rsquo; for a backward reference
to a local label from the suffix &lsquo;<samp>B</samp>&rsquo; for a number in binary notation.
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